# APX810S05-31SR-7

**Diodes Incorporated** · Monitors & Reset Circuits · SOT-23

APX810S05-31SR-7 from Diodes Incorporated, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol and footprint from KiCad-official CAD; the 3D model is generated from the datasheet's package dimensions.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RESET | output | Push-pull active-high reset output on the APX810S, asserted when VCC is below the reset threshold and held for the reset timeout after VCC recovers; guaranteed valid down to VCC = 1 V. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | VCC | power_in | Operating voltage input; recommended supply range is 1.0 V to 5.5 V, with an absolute maximum range of -0.3 V to 6.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| Category | Power Supply Chip |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating Ambient Temperature Range | TA | -40 |  | 125 | °C |  | 3 |
| Supply Voltage | VCC | 1 |  | 5.5 | V |  | 3 |
| RESET/RESET Output Voltage | VRESET | 0 |  | 5.5 | V |  | 3 |
| Supply Voltage | VCC | -0.3 |  | 6 | V |  | 3 |
| RESET/RESET Voltage | VRESET | -0.3 |  | 6 | V |  | 3 |
| Input Current | ICC |  |  | 20 | mA |  | 3 |
| Output Current | IO |  |  | 20 | mA |  | 3 |
| Junction Temperature Range | TJ | -40 |  | 150 | °C |  | 3 |
| Storage Temperature Range | TSTG | -65 |  | 150 | C |  | 3 |
| ESD HBM (Human Body Model) | ESD |  |  | 6000 | V | HBM | 3 |
| ESD MM (Machine Model) | ESD |  |  | 600 | V | MM | 3 |
| Supply Current | ICC |  | 7 | 16 | μA | VTH + 0.2V | 4 |
| Reset Threshold Voltage (APX809SXX/810SXX-31) | VTH | 3.04 | 3.08 | 3.12 | V | TA = +25°C | 4 |
| Reset Active Timeout Period (APX809S05/810S05-XX) | tDELAY | 20 | 50 | 70 | ms | VCC ≥ 1.02 x VTH | 4 |
| RESET Output Voltage Low (APX810S) | VOL |  |  | 0.3 | V | VCC = VTH + 0.2V, ISINK = 1.2mA | 4 |
| RESET Output Voltage Low (APX810S) | VOL |  |  | 0.4 | V | VCC = VTH + 0.2V, ISINK = 3.2mA | 4 |
| Junction-to-Ambient Thermal Resistance (SOT23) | θJA |  | 232 |  | °C/W | SOT23 package | 3 |
| Junction-to-Case Thermal Resistance (SOT23) | θJC |  | 87 |  | °C/W | SOT23 package | 3 |

## CAD (land: KiCad; 3D: generated from the datasheet)

- Symbol: `APX810S05-31SR-7`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23, generated on the KiCad land (body 1.3 x 2.9 mm, terminals on the pads, 1.025 mm tall, datasheet A, nominal). KiCad's stock model for this land is taller than the datasheet allows, so the model is generated from the datasheet drawing; the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files: `apx810s05-31sr-7-etched.step` / `apx810s05-31sr-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `apx810s05-31sr-7.step` / `apx810s05-31sr-7.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/APX810S05-31SR-7.pdf) (10 pp, sha256 `b644892b2c8d0948`, retrieved 2026-11-13, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** land: KiCad official libraries (CC-BY-SA 4.0); 3D: generated from the datasheet's package dimensions (provenance.model_3d_generated).

[Datasheet PDF](docs/apx810s05-31sr-7-datasheet.pdf)